Patterns of macro algae types in the intertidal zone of Malang Rapat waters, Gunung Kijang District, Bintan Regency, Riau Islands, Indonesia

Jamilatun, Amilia; Lestari, Febrianti; Susiana, Susiana

doi:10.29239/j.akuatikisle.4.2.65-71

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…from Pamekasan waters reached an IC50 value of 308.19 ppm [10], from Pok Tunggal Beach waters reached an IC50 value of 188.53 ppm, from Ngandong waters reached an IC50 value of 168.76 ppm [9], and from Sayang Heulang waters reached an IC50 value of 221.76 ppm [12]. No related information has been obtained in Bintan Waters, even though this location has eight macroalgae species from 3 Divisions [13]. Therefore, it is necessary to research the characteristics of bioactive compounds and antioxidant activities in Gracilaria sp.…”

Section: Introductionmentioning

confidence: 96%

Bioactive Compounds and Antioxidant Activity of Tropical Red Algae Gracilaria sp. from Bintan Island, Indonesia

Hidayati

Karlina

Ningsih

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Macroalgae that grow in the tropics are continuously exposed to ultraviolet radiation and sunlight. Macroalgae have self-defense to avoid damage caused by ultraviolet radiation by carrying out secondary metabolism and producing several bioactive compounds. The bioactive compounds produced have the potential to be utilized to inhibit free radicals that can cause degenerative diseases in humans. This research aims to identify bioactive compounds and determine the antioxidant activity, total phenolic compound, total flavonoid compound, and pigment content of red algae Gracilaria sp. from Bintan island. This research has the novelty of the sampling location to be later developed into a sustainable resource in the pharmaceutical field. Gracilaria sp. found in Bintan island was taken, dried in indirect sunlight, and macerated using universal solvent methanol. Phytochemical testing was conducted to determine the presence of flavonoids, steroids, triterpenoids, saponins, and tannins. Antioxidant activity was determined using DPPH as a free radical at the maximum wavelength of DPPH (515 nm) with an incubation time of 55 minutes. Total phenolic and flavonoid compounds were determined using standard solutions of gallic acid and quercetin, respectively. The results showed that the methanol extract of Gracilaria sp. contains flavonoid and tannin compounds, has a chlorophyll-a content of 0.43 mg/g, a carotenoid content of 0.91 µmol/g, the total phenolic compound of 4.67 mg/GAE g, total flavonoid compound of 2.26 mg/QE g and has antioxidant activity with IC50 value of 982.25 ppm. Utilization of Gracilaria sp extract from Bintan waters as a pharmaceutical ingredient is expected to increase prospects and sustainable use in the pharmaceutical and health fields.

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Section: Introductionmentioning

confidence: 96%

Bioactive Compounds and Antioxidant Activity of Tropical Red Algae Gracilaria sp. from Bintan Island, Indonesia

Hidayati

Karlina

Ningsih

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Diversity, Abundance, and Distribution of Macroalgae in Coastal Ecotourism Areas — A Case Study at Baluran National Park, Situbondo, Indonesia

Aprilia¹,

Santanumurti²,

Jamal³

et al. 2023

JTAS

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Indonesia is a mega biodiversity country with abundant macroalgae. The macroalgae are distributed along the coast and function to maintain the balance of the coastal marine ecosystem, including in Bama Beach, Baluran National Park, Situbondo, Indonesia. This study was to determine the abundance, distribution, and diversity of macroalgae in Bama Beach Baluran National Park, East Java, between April 2019 and June 2019. The research was conducted with a purposive sampling method at two stations, each consisting of five substations using transect blocks. Five species of macroalgae from the Phaeophyceae class (Padina australis, Sargassum aquifolium, Polycladia myrica, Eucheuma edule, and Dictyota pinnatifida), a Rhodophyta (Jania pumila), and Chlorophyta (Halimeda macroloba) were found in the study site. Padina australis was a species that had the highest abundance and dominated the observation station. Nonetheless, according to the Shannon-Weaver Index in the study area, overall macroalgae diversity was classified as a low category with a value of 0.35. The high availability of nutrients influences these conditions in ecosystems with the domination of Padina australis, followed by Sargassum aquifolium at Station I and II.

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Patterns of macro algae types in the intertidal zone of Malang Rapat waters, Gunung Kijang District, Bintan Regency, Riau Islands, Indonesia

Cited by 2 publications

References 23 publications

Bioactive Compounds and Antioxidant Activity of Tropical Red Algae Gracilaria sp. from Bintan Island, Indonesia

Bioactive Compounds and Antioxidant Activity of Tropical Red Algae Gracilaria sp. from Bintan Island, Indonesia

Diversity, Abundance, and Distribution of Macroalgae in Coastal Ecotourism Areas — A Case Study at Baluran National Park, Situbondo, Indonesia

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